🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.89

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.55 AU - 0.55 AU

Year: 268 Days

Day: 12.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 26.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.55 AU - 0.79 AU

Year: 360 Days

Day: 21.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,735,150 km

• M1: 186,399 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.9

Radius: 9.5

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.93 AU - 1.13 AU

Year: 686 Days

Day: 11 Hours

Environment

Temp: -155 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,735,150 km

• M1: 118,182 km (0.093 R)
• M2: 495,767 km (0.039 R)
• M3: 807,978 km (0.112 R)
• M4: 1,145,620 km (0.054 R)
• M5: 1,459,028 km (0.104 R)
• M6: 1,845,739 km (0.075 R)
• M7: 2,418,549 km (0.116 R)
• M8: 2,737,043 km (0.101 R)
• M9: 3,377,471 km (0.119 R)
• M10: 4,008,625 km (0.109 R)
• M11: 5,170,551 km (0.119 R)
• M12: 5,521,807 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.6

Radius: 14.7

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 5.62 AU - 5.68 AU

Year: 8810 Days

Day: 13.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,735,150 km

• M1: 182,809 km (0.105 R)
• M2: 702,960 km (0.092 R)
• M3: 1,415,794 km (0.073 R)
• M4: 1,916,798 km (0.059 R)
• M5: 2,907,285 km (0.063 R)
• M6: 3,597,679 km (0.115 R)
• M7: 4,500,353 km (0.032 R)
• M8: 5,398,688 km (0.082 R)
• M9: 6,413,859 km (0.092 R)
• M10: 8,615,341 km (0.064 R)
• M11: 9,597,302 km (0.094 R)
• M12: 11,431,521 km (0.117 R)
• M13: 12,040,235 km (0.096 R)
• M14: 12,670,640 km (0.025 R)
• M15: 15,052,538 km (0.115 R)
• M16: 15,908,986 km (0.051 R)
• M17: 17,988,845 km (0.065 R)
• M18: 18,744,015 km (0.09 R)
• M19: 19,663,593 km (0.051 R)
• M20: 21,669,700 km (0.12 R)
• M21: 23,645,739 km (0.111 R)
• M22: 24,803,626 km (0.113 R)
• M23: 31,166,472 km (0.079 R)
• M24: 36,001,775 km (0.104 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 857.7

Radius: 6.8

Gravity: 18.55 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 6.42 AU - 8.7 AU

Year: 13636 Days

Day: 21.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,735,150 km

• M1: 96,939 km (0.085 R)
• M2: 320,887 km (0.094 R)
• M3: 592,108 km (0.081 R)
• M4: 3,511,212 km (0.117 R)
• M5: 4,489,283 km (0.117 R)
• M6: 8,062,876 km (0.07 R)
• M7: 10,582,703 km (0.114 R)
• M8: 15,648,536 km (0.117 R)
• M9: 17,427,853 km (0.073 R)
• M10: 22,696,391 km (0.109 R)
• M11: 26,636,948 km (0.112 R)
• M12: 30,892,708 km (0.077 R)
• M13: 34,683,668 km (0.11 R)
• M14: 34,938,284 km (0.09 R)
• M15: 39,323,446 km (0.095 R)
• M16: 40,018,328 km (0.117 R)
• M17: 44,660,799 km (0.102 R)
• M18: 47,737,429 km (0.072 R)
• M19: 61,272,894 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 654.6

Radius: 6.3

Gravity: 16.49 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 7.82 AU - 9.56 AU

Year: 16805 Days

Day: 19.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 66,735,150 km

• M1: 80,484 km (0.091 R)
• M2: 587,920 km (0.053 R)
• M3: 827,575 km (0.028 R)
• M4: 1,434,644 km (0.111 R)
• M5: 1,737,878 km (0.083 R)
• M6: 1,951,055 km (0.08 R)
• M7: 2,161,839 km (0.109 R)
• M8: 2,562,013 km (0.102 R)
• M9: 2,960,841 km (0.095 R)
• M10: 3,162,499 km (0.051 R)
• M11: 4,773,967 km (0.068 R)
• M12: 5,415,144 km (0.105 R)
• M13: 9,236,173 km (0.096 R)
• M14: 9,613,907 km (0.099 R)
• M15: 10,750,253 km (0.042 R)
• M16: 11,289,852 km (0.043 R)
• M17: 11,973,514 km (0.096 R)
• M18: 12,553,057 km (0.113 R)
• M19: 12,750,376 km (0.065 R)
• M20: 13,083,830 km (0.089 R)
• M21: 14,839,211 km (0.112 R)
• M22: 17,470,189 km (0.057 R)
• M23: 20,487,428 km (0.081 R)
• M24: 22,071,071 km (0.085 R)
• M25: 26,762,161 km (0.068 R)
• M26: 30,390,957 km (0.079 R)
• M27: 30,628,070 km (0.036 R)
• M28: 31,954,404 km (0.117 R)
• M29: 32,199,595 km (0.103 R)
• M30: 33,570,660 km (0.085 R)
• M31: 40,725,627 km (0.074 R)
• M32: 54,040,884 km (0.078 R)
• M33: 63,200,014 km (0.049 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 15,977 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit